package offer;


public class equlas_2denyu {

    public static void main(String[] args) {
        String a = new String("ab");
        String b = new String("ab");
        String aa ="ab";
        String bb = "ab";
        if (aa==bb) System.out.println("aa==bb");

        if (a==b) System.out.println("a==b");


        if (a.equals(b)) System.out.println("aEQb");

        if (42 == 42.0) System.out.println("true");
    }

}
